lib/eal/common/eal_common_config.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  * Copyright(c) 2020 Mellanox Technologies, Ltd
   3  */
   4 #include <string.h>
   5
   6 #include <rte_string_fns.h>
   7
   8 #include "eal_private.h"
   9 #include "eal_memcfg.h"
  10
  11 /* early configuration structure, when memory config is not mmapped */
  12 static struct rte_mem_config early_mem_config;
  13
  14 /* Address of global and public configuration */
  15 static struct rte_config rte_config = {
  16         .mem_config = &early_mem_config,
  17 };
  18
  19 /* platform-specific runtime dir */
  20 static char runtime_dir[PATH_MAX];
  21
  22 /* internal configuration */
  23 static struct internal_config internal_config;
  24
  25 const char *
  26 rte_eal_get_runtime_dir(void)
  27 {
  28         return runtime_dir;
  29 }
  30
  31 int
  32 eal_set_runtime_dir(const char *run_dir)
  33 {
  34         if (strlcpy(runtime_dir, run_dir, PATH_MAX) >= PATH_MAX) {
  35                 RTE_LOG(ERR, EAL, "Runtime directory string too long\n");
  36                 return -1;
  37         }
  38
  39         return 0;
  40 }
  41
  42 /* Return a pointer to the configuration structure */
  43 struct rte_config *
  44 rte_eal_get_configuration(void)
  45 {
  46         return &rte_config;
  47 }
  48
  49 /* Return a pointer to the internal configuration structure */
  50 struct internal_config *
  51 eal_get_internal_configuration(void)
  52 {
  53         return &internal_config;
  54 }
  55
  56 enum rte_iova_mode
  57 rte_eal_iova_mode(void)
  58 {
  59         return rte_eal_get_configuration()->iova_mode;
  60 }
  61
  62 /* Get the EAL base address */
  63 uint64_t
  64 rte_eal_get_baseaddr(void)
  65 {
  66         return (internal_config.base_virtaddr != 0) ?
  67                        (uint64_t) internal_config.base_virtaddr :
  68                        eal_get_baseaddr();
  69 }
  70
  71 enum rte_proc_type_t
  72 rte_eal_process_type(void)
  73 {
  74         return rte_config.process_type;
  75 }
  76
  77 /* Return user provided mbuf pool ops name */
  78 const char *
  79 rte_eal_mbuf_user_pool_ops(void)
  80 {
  81         return internal_config.user_mbuf_pool_ops_name;
  82 }
  83
  84 /* return non-zero if hugepages are enabled. */
  85 int
  86 rte_eal_has_hugepages(void)
  87 {
  88         return !internal_config.no_hugetlbfs;
  89 }
  90
  91 int
  92 rte_eal_has_pci(void)
  93 {
  94         return !internal_config.no_pci;
  95 }